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ivanzaharov [21]
4 years ago
14

Which of the following represents the sample space for flipping two coins?

Mathematics
1 answer:
Afina-wow [57]4 years ago
7 0
<h2>C.  { HH, HT , TH, TT}</h2>

Step-by-step explanation:

Sample Space  of any event E is the set of all possible outcomes whenever  that event takes place.

Here, event E : Tossing 2 coins

Now, as we know, when an unbiased coin is tossed,

The total outcomes  = {Head, Tail}

So, when two coins are flipped, the total outcomes are  2 x 2  = 4.

Sample space   =  { Head Head, Head Tail, Tail Head, Tail Tail}

or, S  = { HH, HT , TH, TT}

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kolezko [41]

Answer:

-4

Step-by-step explanation:

-1 + -3 = -4

4 0
3 years ago
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Soren solves the quadratic equation x^2 + 8x – 9 = 0 using the quadratic formula. In which step did Soren make an error?
pochemuha

Answer:

step 3 didn't divide by 2

Step-by-step explanation:

in step

\frac{ - 8 +  \sqrt{100} }{2}  =  \frac{ - 8 + 10}{2}  = 1 \\  \frac{ - 8 -  \sqrt{100} }{2}  =  \frac{ - 8 - 10}{2}  =  - 9

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3 years ago
The sum of two numbers is 53 and the difference is 19. What are the numbers?
Nostrana [21]
Let x be the smaller number.
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8 0
3 years ago
How many solutions does this set of equations have 7x − 7y = -6,13x − 9y = 16
QveST [7]

Well they each have 3 solutions

The solutions to 7x-7y=-6 are:

  1. Slope=1
  2. X-intercept= - 6/7=-0.85714
  3. Y-intercept= 6/7= 0.85714

The answers to 13x-9y=16 are:

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8 0
3 years ago
What is the slope of line segment AB? Keep as a reduced fraction.<br> B<br> A
ladessa [460]

Answer:

2

Step-by-step explanation:

Use rise over run (y2 - y1) / (x2 - x1) where (x1, x2) and (y1, y2) are points on the line

Plug in the points A (-3, -2) and B (1, 6)

(y2 - y1) / (x2 - x1)

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So, the slope of line segment AB is 2.

4 0
4 years ago
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